Silver Thorn

This average-sized leaf succulent grows up to 35 feet (10.7 meters) tall. The spear shaped stem is silver, and is covered in handfuls of flexible cyan spines. The slender leaves are found in lime and peach varieties. Sparse amounts of them grow on thick, gnarled, gray-green branches that trail down to the ground. The leaves are resistant, but take little effort to detach.

It is steady-growing, taking 19 months to reach maturity. Once mature, a single flower with amber petals and a yellow center grows at the top, reappearing every year. The flower head is made up of 39 petals; the lower layer of petals are flat, while the upper layers form a tight star. It has no scent.

The leaf succulent's skin is thin, the green flesh is slimy, and the orange sap is thin and causes severe cramps if consumed.